Elevator or storage bin construction.



PATENTED MAY 12, 1903.

B. H.'STAHR. ELEVATOR 0R STORAGE BIN CONSTRUCTION.

APPLIUATION FILED MAR. 18, 1902.

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No. 727,706. PATENTED MAY 12, 1903.

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. ELEVATOR 0B STORAGE BIN CONSTRUGTION APPLICATION run MAR. 18, 1902.

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* UNITED STATES Patented May 12, 1963.

PATENT OF CE.

BERNHARD H. STAHR, OF MINNEAPOLIS, MINNESOTA.

ELEVATOR OR STORAGE BIN CONSTRUCTION.

SPECIFICATION forming part of Letters Patent No. 727,706, dated May 12, 1903. Application filed March 18, 1902 Serial No- 98,'763. (No model.)

have invented certain new and useful Im-' provements in Elevator or Storage Bin Construction, of which the following is a specification.

The object of the invention is to provide a fireproof wall for storage-bins or similar structures which willbe capable of resisting the horizontal thrust .or bulging strain arising from the internal pressure of the grain or the contents of the bin and also be able to withstand exterior strains, such as those arising from wind-pressure, and hence be adapted for use in the erection of high buildings.

A further object is to provide a wall of simple economical construction that can be rapidly erected and be moisture as well as fire proof.

Other objects of the invention will appear from the following detailed description.

The invention consists generally in a wall composed of upright bars arranged at intervals near the surface of the wall and horizontal rods arranged at intervals andin contact with but not secured to said bars, said bars and rods being embedded in a suitable filling material, such as concrete.

Further, the invention consistsin improved means for constructing and supporting th hopper-bottoms of the bins.

Further, the invention consists in various constructions and combinations, all as hereinafter described, and particularly pointed out in the claims. v

In the accompanying drawings, forming part of this specification, Figure 1 is a perspective of a portion of the structure embodying my invention, sliowingian outside wall and a cross-wall intersecting the same. Fig.

. 2 is a similar viewshowing the'manner of connecting the intersecting walls at the corners. bottom of a bin. Fig. dis 'a viewlooking up at the bottom of a bin and showing'one-half of the under side of'th'e-hopper-bottom. Fig. 5 is a horizontal section through the bin, showing the interior of the hopper-bottom.

In the drawings, 2 represents agirder, preferably of steel, 3 Z-bar columns supporting the same, and 5, 6, and 7 horizontal beams upon which the hopper-bottoms of the bins Fig. 3 is a vertical section through the are supported. These beams are arranged on different levels, as shown, the beams 5 supporting the lower portion of the hopper-bottom and the beams 6 and 7 resting upon the girders and the posts 9 and supporting the upper portion thereof. Between the opposite beams 6 and 71 provide headers 8 and 8",which brace the beams and aid in supporting the hopper. The hopper-bottoms, which I represent by the reference-numeral 10, converge from each Wall of the bins toward acentral discharge-opening 11, provided betweenthe beams 5. Said bottoms or floors are'preferably of concrete and are stiffened between the beams by a series of rods 12, that are laid in rows at intervals extending from the lower edges of the bin-walls toward the dischargeopening. These rodsare near the outer surface of each bottom, but are sufficiently concealed in the concrete to protect them from the weather or fire. The walls of the bins, which I have shown square in form and in series, (see Fig. 5,) are supported upon beams 13, resting uponthe girders, and at the bottoms of these walls near said beamsI provide a series of rods 14, which are also preferably arranged near the lower sides of the beams 5, 6, and 7 and serve to strengthen the beams between their supports.

The walls of the bins are provided at intervals with a series'of upright bars 15, preferably arranged in pairs near the inner and outer surfaces of the walls, except at the corners and the intersections of the cross-walls with the outsidev walls, where they'are preferably arranged in groups of four, as shown in Figs. 1 and 2. V

The bars 15, extending vertically in the walls near their surfaces, serve to stiifen and brace the walls from the top to the bottom to resist strain from the outside, such as is pro- .duced particularlyonhigh buildings by high winds, and preventthe concrete from cracking under wind-pressure or in case the building settles. To withstand the bulginginternal pressure arising from the weight of the contents of the binyI provide aseries of rods 16, arranged at intervals horizontally in the walls near the inner and outer surfaces thereof and connecting the groups of upright bars; These rods act as tension members to resist the compressive strain to which the inner surfaces of the walls are subjected and the tensile strain on the outer surfaces of the same. The walls are completed by cement or concrete filling 17, wherein the rods and bars are embedded and concealed. The rods may be secured to the bars in any suitable way; butI prefer to merely place them in horizontal rows against the bars and embed them in the filling as the wall is erected.

At the corners of the bins and at the intersections of the cross-walls with the outside walls the bars are preferably arranged in groups of four in the form of a square, with the rods radiating therefrom in each direction. When a wall is completed, the bars and rods will form a metal skeleton for the same, uniting the intersecting walls, bonding the filling material together at all points, and forming a structure wherein the walls will be thoroughly united and practically homogeneous.

I have shown a square form of bin; but this same construction can be applied with equally good results to those polygonal in form. The bars and rods maybe of any suitable size, according to the height of the wall, the capacity of the bins, and the probable stresses to which the walls will be subjected.

The upright bars instead of being regularly arranged in groups may be staggered or placed irregularly within the walls, and instead of laying each rod horizontally between the bars they may be embedded in the Walls at an angle to the bars. Such changes, however, I regard as obvious modifications not requiring additional illustration.

I claim as my invention- 1. An elevatoror storage bin wall, comprising a series of uprightbars arranged near the inner and outer surfaces of the walls and adapted to stiffen the walls vertically, rods horizontally arranged in said walls also near the outer and inner surfaces of the same and in contact with but not secured to said bars and bracing the walls against horizontal thrust 'or pressure, and a suitable filling material wherein said bars and rods are embedded and concealed.

2. A series of elevator or storage bins having walls comprising a series of upright bars near the inner and outer surfaces of the walls, there being four bars at the intersections of each outer wall with the other outer walls and with the cross-walls and two bars at intervals between said intersections, rods also arranged near the inner and outer surfaces of said walls and lying against said bars and connecting the same, and a concrete filling separating and supporting said rods and wherein they with said bars are embedded and concealed.

3. In an elevator or storage bin, a hopperbottom consisting of concrete sections inclined from the walls of the bin toward a central dischargeopening, bars arranged at intervals in said sections near the under surface of the same, beams supported upon different levels beneath said sections and sustaining the weight of the same and the pressure from raw/0e within the bin, and headers provided at intervals between the opposite beams.

4C. In an elevator or storage bin, a hopperbottom consisting of concrete sections inclined from the walls of the bin toward a central discharge-opening, bars provided at in tervals in said sections near the under surfaces of the same and embedded in the concrete, horizontal concrete beams arranged upon different levels and supporting said sections at intervals and sustaining the weight thereof and the pressure thereon, a series of bars or rods arranged horizontally in said beams near the under surfaces of the same, and suitable girders Whereon said beams are supported.

5. In an elevator or storage bin, a hopperbottom of fireproof material inclined from the Walls of the bin toward a central discharge opening, bars arranged at intervals near the under surface of the same, and beams supported upon different levels beneath said bottom and sustaining the weight of the same and the pressure from Within the bin.

6. In an elevator or storage bin, a hopperbottom of fireproof material inclined from the walls of the bin toward a central discharge opening, bars arranged at intervals near the under surface of the same, beams supported upon difierent levels beneath said bottom and sustaining the weight of the same and the pressure from within the bin, and a series of bars or rods horizontally arranged in said beams near the under surface of the same for the purpose specified.

7. In a storage-bin or the like, a hopperbottom of fireproof material inclined from the walls of the bin toward a central dischargeopening provided therein, bars embedded in said bottom near the surface thereof, and suitable supports for said bottom arranged intermediate to said walls.

8. In an elevator or storage bin, a hopperbottom of fireproof material inclined from the walls of the bin toward a central dischargeopening, bars arranged at intervals near the surface of said bottom, and beams sustaining the weight of said bottom and the pressure from Within the bin, and a series of bars or rods arranged in said beams near the surface thereof, for the purpose specified.

9. A series of storagebins having outer and cross walls of concrete or a like material, a series of upright bars arranged in said walls near both vertical surfaces of said cross-Walls and near the outer surface of the outer wall and adapted to stiffen them vertically, rods horizontally arranged in said Walls and in contact With but not secured to said bars and bracing said outer and cross walls against horizontal thrust or pressure.

In witness whereof I have hereunto set my hand this 13th day of March, 1902.

BERNHARD H. STAHR.

In presence of RICHARD PAUL, M. O. NOONAN. 

